package com.iguo.tube.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Service;

import java.util.*;
import java.util.concurrent.TimeUnit;

@Service
public class RedisCacheUtil<T>
{


  @Autowired
  @Qualifier("redisTemplate")
  public RedisTemplate redisTemplate;



  /**
   * 缓存基本的对象，Integer、String、实体类等
   * @param key    缓存的键值
   * @param value    缓存的值
   * @return        缓存的对象
   */
  public <T> ValueOperations<String,T> setCacheObject(String key, T value)
  {

    ValueOperations<String,T> operation = redisTemplate.opsForValue();
    operation.set(key,value);
    return operation;
  }

  public <T> ValueOperations<String,T> setCacheObject(String key, T value, long time)
  {

    ValueOperations<String,T> operation = redisTemplate.opsForValue();
    operation.set(key, value, time, TimeUnit.SECONDS);
    return operation;
  }

  /**
   * 获得缓存的基本对象。
   * @param key        缓存键值
   * @param
   * @return            缓存键值对应的数据
   */
  public <T> T getCacheObject(String key/*,ValueOperations<String,T> operation*/)
  {
    ValueOperations<String,T> operation = redisTemplate.opsForValue();
    return operation.get(key);
  }

  /**
   * 缓存List数据
   * @param key        缓存的键值
   * @param dataList    待缓存的List数据
   * @return            缓存的对象
   */
  public <T> ListOperations<String, T> setCacheList(String key, List<T> dataList)
  {
    ListOperations listOperation = redisTemplate.opsForList();
    if(null != dataList)
    {
      int size = dataList.size();
      for(int i = 0; i < size ; i ++)
      {

        listOperation.rightPush(key,dataList.get(i));
      }
    }

    return listOperation;
  }

  /**
   * 获得缓存的list对象
   * @param key    缓存的键值
   * @return        缓存键值对应的数据
   */
  public <T> List<T> getCacheList(String key)
  {
    List<T> dataList = new ArrayList<T>();
    ListOperations<String,T> listOperation = redisTemplate.opsForList();
    Long size = listOperation.size(key);

    for(int i = 0 ; i < size ; i ++)
    {
      dataList.add((T) listOperation.leftPop(key));
    }

    return dataList;
  }

  /**
   * 缓存Set
   * @param key        缓存键值
   * @param dataSet    缓存的数据
   * @return            缓存数据的对象
   */
  public <T> BoundSetOperations<String,T> setCacheSet(String key, Set<T> dataSet)
  {
    BoundSetOperations<String,T> setOperation = redisTemplate.boundSetOps(key);
        /*T[] t = (T[]) dataSet.toArray();
             setOperation.add(t);*/


    Iterator<T> it = dataSet.iterator();
    while(it.hasNext())
    {
      setOperation.add(it.next());
    }

    return setOperation;
  }

  /**
   * 获得缓存的set
   * @param key
   * @param
   * @return
   */
  public Set<T> getCacheSet(String key/*,BoundSetOperations<String,T> operation*/)
  {
    Set<T> dataSet = new HashSet<T>();
    BoundSetOperations<String,T> operation = redisTemplate.boundSetOps(key);

    Long size = operation.size();
    for(int i = 0 ; i < size ; i++)
    {
      dataSet.add(operation.pop());
    }
    return dataSet;
  }

  /**
   * 缓存Map
   * @param key
   * @param dataMap
   * @return
   */
  public <T> HashOperations<String,String,T> setCacheMap(String key,Map<String,T> dataMap)
  {

    HashOperations hashOperations = redisTemplate.opsForHash();
    if(null != dataMap)
    {

      for (Map.Entry<String, T> entry : dataMap.entrySet()) {

        /*System.out.println("Key = " + entry.getKey() + ", Value = " + entry.getValue());  */
        hashOperations.put(key,entry.getKey(),entry.getValue());
      }

    }

    return hashOperations;
  }

  /**
   * 获得缓存的Map
   * @param key
   * @param
   * @return
   */
  public <T> Map<String,T> getCacheMap(String key/*,HashOperations<String,String,T> hashOperation*/)
  {
    Map<String, T> map = redisTemplate.opsForHash().entries(key);
    /*Map<String, T> map = hashOperation.entries(key);*/
    return map;
  }







  /**
   * 缓存Map
   * @param key
   * @param dataMap
   * @return
   */
  public <T> HashOperations<String,Integer,T> setCacheIntegerMap(String key, Map<Integer,T> dataMap)
  {
    HashOperations hashOperations = redisTemplate.opsForHash();
    if(null != dataMap)
    {

      for (Map.Entry<Integer, T> entry : dataMap.entrySet()) {

        /*System.out.println("Key = " + entry.getKey() + ", Value = " + entry.getValue());  */
        hashOperations.put(key,entry.getKey(),entry.getValue());
      }

    }

    return hashOperations;
  }

  /**
   * 获得缓存的Map
   * @param key
   * @param
   * @return
   */
  public <T> Map<Integer,T> getCacheIntegerMap(String key/*,HashOperations<String,String,T> hashOperation*/)
  {
    Map<Integer, T> map = redisTemplate.opsForHash().entries(key);
    /*Map<String, T> map = hashOperation.entries(key);*/
    return map;
  }

}